1每日一句长难句
What was interesting was how quickly, by using relevant and local examples where possible, the pupils cottoned on to how the interplay of rights and responsibilities could affect their lives, and so became active and engaged participants in the classroom debates.

2【结构分析】
主语部分由what引导的名词性从句充当，was是谓语，表语由how引导的从句充当，by using relevant and local examples where possible方式状语做插入语。表语从句由and so连接了两个谓语cottoned on to和became active and engaged participants，并且cottoned on to后的宾语也由how引导的从句充当。

3【词汇】
cotton on to 理解

interplay 相互作用

engaged 此处是形容词，与active并列，译成“投入的”

4【参考译文】
有意思的是，通过讲述可能发生在身边与自己息息相关的例子，学生们很快地理解了权利与责任间的相互作用是怎样影响他们的生活，然后更积极主动地参加课堂讨论。

5【明日长难句】
The energy used to separate oxygen from air before burning is almost as great as that needed to filter out nitrogen afterwards, leading to a similar loss of efficiency.

戳图了解 2020考研新手必修课【拼团福利班】